Biomedical devices
AssigneeBausch & Lomb Incorporated
InventorsIvan M. Nunez, Jay F. Kunzler, Jeffrey G. Linhardt, Jennifer Hunt
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Abstract
Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a multi-armed macromonomer comprising multiple side chains attached to a nucleus, wherein each side chain comprises a thio carbonyl thio fragment of the same or different reversible addition fragmentation chain transfer (“RAFT”) agent; and (b) one or more biomedical device-forming monomers are disclosed.
Claims18
A biomedical device comprising an in-mold polymerization product of a mixture comprising (a) a multi-armed macromonomer block copolymer comprising multiple side chains attached to a nucleus, wherein each side chain is a block copolymer comprising a thio carbonyl thio fragment of the same or different reversible addition fragmentation chain transfer (RAFT) agent, and one or more hydrophilic units, and further wherein each side chain does not contain one or more hydrophobic units;
- and (b) one or more biomedical device-forming monomers, wherein the biomedical device is a contact lens, an intraocular lens or a conical implant.
A biomedical device obtained by casting a mixture comprising (a) a multi-armed macromonomer block copolymer comprising multiple side chains attached to a nucleus, wherein each side chain is a block copolymer comprising a thio carbonyl thio fragment of the same or different reversible addition fragmentation chain transfer (RAFT) agent, and one or more hydrophilic units, and further wherein each side chain does not contain one or more hydrophobic units;
- and (b) one or more biomedical device-forming monomers, into a biomedical device by mold polymerization, wherein the biomedical device is a contact lens, an intraocular lens or a corneal implant.
Dependencies are inferred from the claim text.